EP1372875B1 - Procede de fonctionnement d'un train de laminoir et train de laminoir concu de facon correspondante - Google Patents

Procede de fonctionnement d'un train de laminoir et train de laminoir concu de facon correspondante Download PDF

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Publication number
EP1372875B1
EP1372875B1 EP02719952A EP02719952A EP1372875B1 EP 1372875 B1 EP1372875 B1 EP 1372875B1 EP 02719952 A EP02719952 A EP 02719952A EP 02719952 A EP02719952 A EP 02719952A EP 1372875 B1 EP1372875 B1 EP 1372875B1
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EP
European Patent Office
Prior art keywords
strip
rolling
roll
profile
setting value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02719952A
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German (de)
English (en)
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EP1372875A1 (fr
Inventor
Jürgen Seidel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
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SMS Demag AG
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Publication date
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Publication of EP1372875A1 publication Critical patent/EP1372875A1/fr
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Publication of EP1372875B1 publication Critical patent/EP1372875B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/72—Rear end control; Front end control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/20—End shape; fish tail; tongue
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/22—Lateral spread control; Width control, e.g. by edge rolling

Definitions

  • the invention relates to a method for operating a rolling mill for rolling a strip-like rolling stock with an edger and a number of rolling stands arranged one behind the other in a rolling direction, which each have an actuating unit for influencing the contour of the strip end of the rolling stock is assigned. It also concerns such a rolling mill, which in particular also on the inlet side with an edger for width reduction of the rolling stock can be equipped (see e.g. in the search report cited XP-000631074).
  • the mill stands commonly called so-called multi-roll stands are designed and a number of working and if necessary include a number of support rollers, are for the Passing through a usually elongated rolling stock is provided and in a direction of advance of the Rolling stock seen one behind the other.
  • a rolling mill with a plurality Such mill stands can be used in particular when machining a strip-like rolling stock or rolled strip are used.
  • strip-like rolling stock is primarily two-dimensional Design as rolling stock extended in an extension plane with only slightly compared to its dimensions in the extension plane Thickness.
  • strip run i.e. the passage of the rolling stock through the roll stands
  • strip tension usually has a stabilizing effect on the actual one Tape.
  • the strip tension can also be seen off-center when viewed asymmetrically occur.
  • the tape pull forces acting off-center on the rolling stock to one of the actual ones Rolling material deviating behavior of the strip end come, which in turn Rolling errors can result.
  • the roll stands can each be substantially perpendicular be aligned pivotable to the rolling direction axis of rotation.
  • Belt movement can be influenced in such a way that asymmetrically occurring tensile stresses be kept particularly low, or that another requirement for the tape run is observed.
  • Faults in the tape run that, for example, too rolled Belt ends, damage to rollers and associated with it Need to perform additional roll changes can usually be corrected by suitable swiveling of roll stands by a helmsman.
  • the intervention options with regard to a particularly good rolling result are only limited, however, especially in the direction of rolling seen front roll stands due to the comparatively there necessary corrective measures are difficult to detect are, and since the spaces between adjacent in the rolling direction Roll stands are also relatively difficult to see.
  • the invention is therefore based on the object of a method for operating to specify a rolling mill of the type mentioned above with which on simple and reliable way a cheaper for a given rolling result Tape run can be reproducibly observed.
  • the goal is to create a rectangular to create a symmetrical tape end / tape head. Long tabs too and fish tails at the end of the belt should be avoided.
  • one rolling mill particularly suitable for carrying out the process become.
  • this object is achieved according to the invention by a manipulated variable for one or each associated with a roll stand or an edger Actuator depending on the determined contour of the belt end of a rolling stock that has already been rolled is specified.
  • the invention is based on the consideration that for a simple and Reliable adherence to a specified tape run the strip run on the basis of rolling operations preceding the strip run particularly characteristic input variables should take place.
  • the tracking of the influence on the strip run based on previous rolling results.
  • the material flow is provided in an already finished rolling stock, the just depending on the swivel amount made the roll stands occurs with every rolling stock. This flow of material fights particularly in the manner of an effect accumulated over the entire length of the rolling stock in the area of the band end.
  • An evaluation of the contour of the End of strip in the plane of extension of the strip-shaped rolling stock thus provides one for specifying the control values for the roll stands or the Staucher particularly valuable information when passing through the next rolling stock.
  • a control value for the swivel angle of one or each mill stand depending on the contour of the strip end of the already specified rolled stock.
  • a suitable swivel value of the Roll stands around their respective axes of rotation make a particular one possible targeted influence on the belt run.
  • the information obtained by evaluating the contour of the strip end is advantageously also used for further correction interventions in the current rolling process used.
  • the calculation of the The course of the bandwidth in the subsequent scaffolding taking into account the Bandvenssen für für technik. From the information now available regarding the course of the bandwidth can be known with knowledge of the roll bending behavior Correction values for the manipulated value characteristic of work roll bending be provided in one or each subsequent roll stand. Using these correction values, the control values for the respective work roll bend can be adjusted can be specified in such a way that unevenness and / or strip rolling occur only to a particularly small extent.
  • constant traction e.g. narrowing Width of the rolled material in the area of its strip end a locally higher tensile stress arise that undesirably lead to tearing of the tape can.
  • Knowing the actual minimum width due to the Evaluation of the contour of the strip end can determine the tensile force with which the respective Looper is charged to be reduced accordingly, so that such tearing can be avoided.
  • long Avoiding band tongues at the end of the band can also give the edger a separate one Actuator unit can be assigned, for example, by means of long strap tongues can be compensated for by increased width reductions at the end of the belt.
  • the width of the rolling stock is influenced using an edger , especially with comparatively large width reductions, so-called fish tail ends arise at the end of the tape, which at Threading out the tape in the rear scaffolds are unfavorable and cause warping being able to lead.
  • By evaluating the contour of the strip end can continue alternatively or additionally the emergence of such fish tail ends be recognized early so that appropriate countermeasures, especially corrective interventions on the edger can.
  • the edger is provided as an actuator. Long tabs can be raised Width reductions on abs. Band end to be fought.
  • the detection of the contour of the strip end of the rolled stock can thereby at a suitable location within the rolling mill and with suitable means, for example via a number of width sensors.
  • suitable means for example via a number of width sensors.
  • a contactless, in particular an optical, determination of the Contour of the band end is provided, with an advantageous embodiment Camera can be used.
  • the evaluation of the contour of the strip end can be done in that the position of the maximum in the contour in Width direction of the strip-shaped rolling stock is determined, the manipulated variable for the swivel angle with regard to a predefinable target position for the maximum is specified as a reference variable.
  • the contour of the tape end is evaluated using a polynomial, with which a number of in total the contour of the tape end representative measured values is approximated.
  • the measured values can be digitized, for example, using an optical camera can be determined, the approximation by the polynomial in one downstream computer module can take place.
  • the polynomial that best approximates the measured values obtained is the Contour of the tape end with a comparatively small number of further processing parameters can be evaluated.
  • Such a polynomial can also be the so-called wedge portion of the band end contour be taken into account in a particularly favorable manner.
  • the wedge is the measure by which the preferred direction of the contour of the End of the strip deviates from the width direction of the rolling stock.
  • the wedge can also be determined alternatively by evaluating those points, where the tape ends and the contour of the actual tape end pass. The evaluation and determination of these points is through the The polynomial can be used in a particularly favorable manner.
  • the contour of the tape head of the tape head determined in the extension plane Rolled stock that has already been rolled when specifying the control values for the roll stands considered. Because of the comparatively smaller material flow in Longitudinal direction of the rolling stock towards the strip head to the shape possible Error in the choice of the swivel angle for the roll stands less than with the contour of the tape end; taking into account the contour of the tape head nevertheless contributes very well to the completion of the setting of the control values information that can be evaluated for the swivel angle.
  • Swivel angle can be achieved by in an advantageous further development in the specification of or each manipulated variable for the swivel angle of the roll stands Width direction of the strip determined temperature profile of the rolling stock and / or the strip profile in front of and / or behind the rolling mill is taken into account.
  • the swivel angle is therefore one for a roll stand predefined manipulated variable when specifying a manipulated variable for one or each
  • the following roll stand taken into account in the rolling direction is taken into account.
  • the subsequent rolling stands in the rolling mill are also pivoted, whereby their tracking for compensation by by pivoting the comparatively front roll stand caused interference is provided.
  • the one specified for a roll stand is specified Control value when specifying the control value for the following one Roll stand in a for the intended decrease in the thickness of the rolling stock at Transition into this subsequent mill stand proportional dimensions considered.
  • the or each manipulated variable for the Swivel angle of the respective roll stand advantageously tracked in such a way that there is a contour symmetrical to the longitudinal central axis of the rolling stock of the tape end. It can be used as a design criterion for one of the Regulation assigned to the rolling mill can be provided by suitable specification a deviation of the control values for the swivel angle of the roll stands Contour of the end of the band can be reduced to a minimum from an asymmetrical contour.
  • A can be used as a reference variable for a control unit assigned to the rolling mill Predeterminable wedge shape or taper of the band in its plane of extension or alternatively the position of the maximum of the contour of the strip end be provided in the width direction.
  • the or each manipulated variable for the Swivel angle of the respective roll stand advantageously tracked in such a way that the contour of the tape end is at its maximum in the width direction of the tape occupies a position that can be specified as a setpoint.
  • a particularly high degree of flexibility can be achieved when processing the rolling stock, by the setpoint for the position of the maximum in the width direction or the setpoint for the band end wedge in the extension plane in particular advantageous development depending on the position of each Roll stand in the rolling mill is specified.
  • an already asymmetrical design, seen in the direction of the strip cross-section strip-shaped rolling stock can be processed in a particularly advantageous manner by in the front roll stand seen in the rolling direction, the swivel angle is initially set such that the wedge shape of the incoming band-shaped Rolled material is returned and the rolled material thus in one of its longitudinal central axis symmetrical cross-sectional shape is brought.
  • the swivel angle is initially set such that the wedge shape of the incoming band-shaped Rolled material is returned and the rolled material thus in one of its longitudinal central axis symmetrical cross-sectional shape is brought.
  • the strip cross-sectional profiles of the in the rolling mill incoming and out of this rolled stock measured.
  • control unit that has a manipulated variable for one or each one Roll stand or an actuator associated with an edger, advantageously for the swivel angle of one or each roll stand, depending on the in the extent of the contour of the strip end of a strip that has already been rolled Rolling stock pretends.
  • the control unit is expediently on the output side connected with adjusting devices for adjusting the swivel angle.
  • this is advantageously on the input side with a number of each a rolling mill associated with measuring devices for determining the contour of the strip end and / or the strip head of the rolling stock already rolled in connected to its extension level.
  • the measuring devices can, for example arranged in an elevated position on the respectively assigned roll stand be so that the determination of the contour of the tape end in top view on the rolling stock is made possible.
  • Suitable width sensors can be used to measure the contour of the strip end be provided, via which the determination of the width of the rolling stock in dependence is made possible by a longitudinal coordinate.
  • the respective one is preferred Measuring device for non-contact measurement as an optical device, in particular trained as a camera.
  • Control unit in a further advantageous embodiment on the input side with a Temperature measuring device for determining the temperature profile of the strip in its width direction and / or with a number of strip cross-sectional profile measuring devices connected.
  • the advantages achieved by the invention are in particular that taking into account the contour of the strip end of a previously rolled rolling stock in its extension level when specifying the manipulated values for the Swivel angle of the roll stands for the rolling process and the rolling result disadvantageous incorrect settings when pivoting the roll stands on especially simple and reliable way to compensate. It is in the kind of a learning or adapting system, the detection of incorrect settings based on the evaluation of previous rolling results, where the contour of the strip end as a direct effect of the material flow in the strip-shaped rolling stock a particularly precise and reliable Conclusion of possible incorrect settings in the swiveling angles of the roll stands allows. In addition, the specification of management parameters for the setting of the swivel angle depending on the position of each Roll stand in the rolling mill a particularly flexible processing of the rolling stock take place so that with reliably high rolling quality also different preformed rolling stock is machinable.
  • the rolling mill 1 comprises a number of roll stands 2, which in the exemplary embodiment are each designed as multi-roll stands.
  • Each includes Roll stand 2 each have a first work roll 4 and a second work roll 6, which together form a roll gap 8 and for the passage of one Rolled stock 10 are formed.
  • the work rolls 4, 6 are on their rolling stock 10 sides facing away from an associated support roller 12 or 14 supported, which in turn each in a roll stand, not shown is held.
  • the rolling mill 1 is for processing one in the manner of a strip in one Extension plane extended rolling stock 10 is formed.
  • the band-like Rolld stock 10 has a primarily two-dimensional shape.
  • Strip run ie the passage of the rolling stock 10 through the roll stands 2, really important.
  • the rolling mill 1 is designed that affects the strip run during the actual rolling process can be.
  • each roll stand 2 is one by in the figure a line indicated, substantially perpendicular to that indicated by arrow 16 Rolling direction x oriented axis of rotation 18 adjustable or pivotable educated.
  • each rolling stand 2 is assigned an actuating unit 20, one of which is not detailed represented employment of the respective roll stand 2.
  • the rolling mill 1 is provided with a control unit 22, which among other things for automated influencing of the pivot angle of the roll stands 2 is provided is.
  • the control unit 22 is on the output side for the transmission of a Control value S in each case via a data line 24 with the actuating device 20 Roll stand 2 connected.
  • the rolling mill 1 and in particular its control unit 22 are for a particularly reliable compliance with a proper Strip run designed during the rolling process.
  • control unit 22 is designed such that it sets the control values S for the Swivel angle of the roll stands 2 as a function of that in the plane of extension of an already rolled rolling stock 10 determined from its Band end 30 specifies.
  • An example of such a contour of the band end 30 is shown in Figure 2 for a strip-like rolling stock 10 in plan view.
  • the rolling stock 10 is only in sections and in the area of its Band end 30 shown.
  • the contour of the band end 30 in the plane of extension the rolling stock 10 can be a comparatively irregular and Compared to the longitudinal center axis 32 of the rolling stock 10 have an asymmetrical shape.
  • Such asymmetries can be faulty in particular as a result of set swivel angles occur in one or more roll stands 2.
  • An incorrectly set swivel angle can be compared in one to the other rolling stock 10 locally different material flow in the longitudinal direction of tape 10 result.
  • Such a locally different material flow strikes in a cumulative manner especially at the strip end 30 of the rolling stock 10 in the form of an asymmetrical contour.
  • the determination of the maximum of the contour of the strip end 30 in the width direction y of the rolling stock 10 may be provided.
  • the contour of the In this case, the end of the tape 30 can be evaluated as a sequence of points.
  • the control unit 22 could set the control values S for the swivel angle Output mill stands 2 so that the maximum in the contour of the strip end 30 in the manner of a symmetrical contour in a position in the immediate vicinity Sets near the longitudinal center axis 32 of the rolling stock 10.
  • Alternative would be also the evaluation of the contour of the strip end 30 via spline functions possible.
  • the contour of the strip end is evaluated 30 provided with the aid of a polynomial. It becomes a polynomial, whose course 34 is shown in dashed lines in Figure 2, chosen such that its Course 34 the actual determined on the basis of a number of measured values Contour of the tape end 30 approximates as best as possible. With the mathematical determination of the polynomial is a greater weighting of the measuring points in the band center area 35 advantageous. Further evaluation can be carried out via this polynomial the contour of the tape end 30 with only a comparatively small number of parameters.
  • the position of the maximum 36 in the course 34 of the polynomial in the width direction y of the rolling stock 10 are used.
  • the so-called wedge of the band end 30 is also determined become.
  • the rolling mill 1 is as shown in FIG Figure 1 is shown, provided with a number of measuring devices 50.
  • the Measuring devices 50 can be configured, for example, as width sensors his. In the embodiment, however, is a non-contact optical Detection of the contour of the tape end 30 is provided.
  • the measuring devices 50 designed as optical devices, namely as cameras.
  • the measuring devices 50 are between two roll stands 2 in a height arranged so that a determination of the contour of the tape end 30 in plan view of the rolling stock 10 is made possible.
  • the control unit 22 is there on the input side for taking over the data supplied by the measuring devices 50, for the contour of the strip end 30 characteristic measured values on the input side connected to the measuring devices 50.
  • the measuring devices designed as cameras are 50 dimensioned and positioned so that the entire contour of the tape end 30, ie the contour across the entire width of the rolling stock 10, in Measuring range of the respective measuring device 50 is located and thus detected simultaneously can be.
  • Measuring device 50 be positioned such that their measuring range does not cover the entire Width of the rolling stock 10 detected.
  • it can be sequential Scanning provided for determining the contour of the tape end 30 be that the respective measuring device 50 concerned a series of partially overlapping single images, which in their entirety is complete Play the contour of the tape end 30.
  • control unit 22 is on the input side with a temperature measuring device 52 connected.
  • the temperature measuring device 52 is used for the determination a temperature profile of the rolling stock 10 in its width direction y.
  • control unit 22 is on the input side with a first profile measuring device 54 and connected to a second profile measuring device 56.
  • the profile measuring device 54 is seen in the rolling direction of the rolling stock before arranged first roll stand 2 and is used to determine the cross-sectional profile of the rolling stock 10 entering the rolling mill 1.
  • the profile measuring device 56 however, seen in the rolling direction of the rolling stock 10, is behind the last one Roll stand 2 arranged and to determine the cross-sectional profile of the Rolling stock 10 emerging from rolling mill 1 is provided.
  • a for is reliably observed a high quality rolling result favorable strip running an adjustment the swivel angle of each roll stand 2 by specifying suitable control values S. through the control unit 22.
  • the rolling mill 1 is in the manner of a learning or adaptive system, the control values S taking into account of the rolling result can be specified for rolled products that have already been rolled.
  • the contour of the strip end 30 is determined via the measuring devices 50 of a rolling stock 10 that has already been rolled.
  • the contour can be used for a Rolling stock 10 can be determined that has left the rolling mill 1 in total, or also for a rolling stock 10 that has already emerged from one of the roll stands 2 is, but still has to go through the subsequent roll stands 2.
  • the Measuring device 50 When determining the contour of the strip end 30 is based on the Measuring device 50 delivered measured values that approximate the contour course Polynomial generated.
  • This polynomial is used to check 2 for each roll stand, whether a guide variable provided for this roll stand 2 is in the tolerance range of a predefinable setpoint. It can be used as a benchmark for example the position of the maximum of the polynomial in the width direction y of the rolling stock 10 or also characterizing the wedge nature of the rolling stock 10 Length difference 40 can be evaluated. With regard to that accordingly The preset command variable becomes the manipulated values S for the roll stands 2 tracked in such a way that the corresponding target values are increasingly approximated become.
  • the control unit 22 is also designed so that a control value for the swivel angle of a roll stand 2 when specifying the control values for the Swivel angle of the subsequent roll stands 2 is also taken into account. It is provided that the by the pivoting of a roll stand 2nd within the rolling mill 1 in the subsequent rolling stands 2 Malfunction in the tape run is largely compensated for. there the subsequent rolling stands 2 are pivoted in one to in Rolling direction decreasing thickness of the rolling stock 10 proportional dimensions.
  • the control unit 22 also gives control values for the bending forces of the work rolls 4, 6 in front, and is associated with the work rolls 4, 6, Connected control elements not shown. These control values for the bending forces of the work rolls 4, 6 are based on the determined contour of the tape end 30 tracked and corrected. For this, the determined Contour of the tape end 30 in the control unit 22 taking into account the Band extension of the course of the bandwidth in the subsequent ones Roll stands 2 calculated. Taking these width parameters into account of the roll bending behavior are the manipulated values for the bending force of the Work rolls 4, 6 predetermined such that unevenness on the rolling stock 10 and thus tape roll-ups should not occur.
  • control unit 22 can also use the determined contour of the tape end 30 when specifying a tensile force for a looper and / or a manipulated value for a upstream of the rolling mill 1, not shown Be configured for upsetter.
  • the process is not only for a rolling mill consisting of several stands applicable, but also for reversing stands in which several stitches be rolled.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Crushing And Grinding (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Multiple Motors (AREA)
  • Surgical Instruments (AREA)
  • Pinball Game Machines (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)

Claims (22)

  1. Procédé pour le fonctionnement d'un laminoir (1) pour laminer un produit (10) de type bande avec un refouleur ainsi qu'un certain nombre de cages de laminage (2) disposées les unes derrière les autres dans le sens du laminage (x), un certain nombre d'unités de réglage (20) pour influencer le contour de l'extrémité (30) de la bande étant utilisé, caractérisé en ce qu'on prédéfinit une valeur de réglage (S) pour une unité de réglage (20) ou pour chaque unité de réglage associée à une cage de laminage (2) ou au refouleur, en fonction du contour déterminé de l'extrémité (30) de bande d'un produit (10) déjà laminé.
  2. Procédé selon la revendication 1, caractérisé en ce qu'en fonction du contour déterminé de l'extrémité (30) de la bande du produit (10) déjà laminé, on prédéfinit une valeur de réglage (S) pour l'angle de pivotement (18) d'une ou de chaque cage de laminage (2) autour d'un axe rotatif (18) orienté de manière essentiellement perpendiculaire par rapport au sens du laminage (x).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le contour de l'extrémité (30) de la bande est déterminé optiquement.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la valeur de réglage ou chaque valeur de réglage (S) est prédéfinie à l'aide d'une évaluation d'un polynôme, qui approche un nombre de valeurs de mesure caractérisant dans leur totalité le contour de l'extrémité (30) de la bande.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que lors de la prédéfinition de la ou de chaque valeur de réglage (S), on tient compte du contour déterminé de la tête de la bande du produit (10) déjà laminé.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que lors de la prédéfinition de la ou de chaque valeur de réglage (S), on tient compte d'un profil de température du produit laminé (10) déterminé dans le sens de la largeur (y) de la bande et/ou d'un profil d'épaisseur déterminé dans le sens de la largeur (y) de la bande.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que lors de la prédéfinition d'une valeur de réglage (S) pour une cage de laminage (2), on tient compte de l'épaisseur du produit laminé (10) lors de son passage dans cette cage de laminage (2).
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'on tient compte conjointement d'une valeur de réglage prédéfinie (S) pour une cage de laminage (2) lors de la prédéfinition d'une valeur de réglage (S) pour une ou chaque cage de laminage (2) en aval dans le sens du laminage (x).
  9. Procédé selon la revendication 8, caractérisé en ce que la valeur de réglage (S) prédéfinie pour une cage de laminage (2) lors de la prédéfinition de la valeur de réglage (S) pour la cage de laminage (2) suivante est prise en compte de manière proportionnelle par rapport à la diminution prévue de l'épaisseur du produit laminé (10) lors de son passage dans cette cage de laminage (2) suivante.
  10. Procédé selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la ou chaque valeur de réglage (S) est ajustée de telle manière qu'il se règle un contour symétrique de l'extrémité (30) de la bande par rapport à l'axe central longitudinal (32) du produit laminé (10).
  11. Procédé selon l'une quelconque des revendications 1 à 10, caractérisé en ce que la ou chaque valeur de réglage (S) est ajustée de telle manière que le contour de l'extrémité (30) de la bande présente un maximum (36) en une position prédéfinie comme valeur de consigne dans le sens de la largeur (y) de la bande.
  12. Procédé selon la revendication 11, caractérisé en ce qu'une valeur de consigne dépendant de la position de chaque cage de laminage (2) dans le laminoir (1) est prédéfinie pour la position du maximum (36) dans le sens de la largeur (y) et/ou pour la courbure concave du contour de l'extrémité (30) de la bande.
  13. Laminoir (1) pour le laminage d'un produit laminé (10) de type bande présentant un certain nombre de cages de laminage (2) disposées les unes derrière les autres dans le sens du laminage (x), auxquelles est à chaque fois associée une unité de réglage (20) pour influencer le contour de l'extrémité (30) de la bande, caractérisé par une unité de réglage (22), qui prédéfinit une valeur de réglage (S) pour une ou chaque cage de laminage (2) ou pour une unité de réglage (20) associée à un refouleur en fonction du contour déterminé de l'extrémité (30) de la bande d'un produit (10) déjà laminé.
  14. Laminoir (1) selon la revendication 13, caractérisé en ce que l'unité de réglage (22) prédéfinit une valeur de réglage (S), en fonction du contour déterminé de l'extrémité (30) de la bande du produit (10) déjà laminé, pour l'angle de pivotement d'une ou de chaque cage de laminage (2) autour d'un axe rotatif (18) orienté de manière essentiellement perpendiculaire par rapport au sens du laminage (x).
  15. Laminoir (1) selon la revendication 13 ou 14, caractérisé en ce que l'unité de réglage (22) est reliée du côté de l'entrée à un certain nombre de dispositifs de mesure (50) associés aux différentes cages de laminage (2) pour déterminer le contour de l'extrémité (30) de la bande et/ou de la tête de la bande dans le plan de l'allongement.
  16. Laminoir (1) selon la revendication 15, caractérisé en ce que le ou chaque dispositif de mesure (50) est réalisé sous forme d'un dispositif optique, de préférence sous forme d'une caméra.
  17. Laminoir (1) selon l'une quelconque des revendications 13 à 16, caractérisé en ce que l'unité de réglage (22) est reliée du côté de l'entrée avec un dispositif (52) de mesure de la température pour déterminer un profil de température du produit laminé dans le sens de sa largeur (y) et/ou avec un certain nombre de dispositifs (54, 56) de mesure du profil pour déterminer un profil de bande dans le sens de la largeur (y).
  18. Laminoir (1) selon l'une quelconque des revendications 13 à 17, caractérisé en ce que les cages de laminage antérieures peuvent être pivotées de telle manière qu'on peut obtenir un profil de bande finie sans courbure concave.
  19. Laminoir (1) selon l'une quelconque des revendications 13 à 18, caractérisé en ce qu'on a prévu des éléments de correction pour la force de traction du couloir à boucles et la force de flexion des cylindres de travail en fonction de la largeur de bande déterminée.
  20. Laminoir (1) selon l'une quelconque des revendications 13 à 19, caractérisé en ce qu'une cage de refoulement est disposée dans le laminoir en vue du réglage du rectangle optimisé de la bande.
  21. Laminoir (1) selon la revendication 20, caractérisé par une unité de surveillance de la diminution de refoulement maximale en vue d'éviter des queues d'hirondelle.
  22. Laminoir (1) selon l'une quelconque des revendications 13 à 21, caractérisé en ce que les cages de laminage du laminoir présentent des éléments de réglage du profil pour corriger le profil de la bande, en vue d'influencer la forme de l'extrémité de la bande.
EP02719952A 2001-03-31 2002-02-28 Procede de fonctionnement d'un train de laminoir et train de laminoir concu de facon correspondante Expired - Lifetime EP1372875B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10116273A DE10116273A1 (de) 2001-03-31 2001-03-31 Verfahren zum Betreiben einer Walzstraße sowie eine entsprechend ausgebildete Walzstraße
DE10116273 2001-03-31
PCT/EP2002/002131 WO2002078872A1 (fr) 2001-03-31 2002-02-28 Procede de fonctionnement d'un train de laminoir et train de laminoir conçu de façon correspondante

Publications (2)

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EP1372875A1 EP1372875A1 (fr) 2004-01-02
EP1372875B1 true EP1372875B1 (fr) 2004-09-15

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US (1) US6983631B2 (fr)
EP (1) EP1372875B1 (fr)
JP (1) JP4383745B2 (fr)
KR (1) KR100841261B1 (fr)
CN (1) CN1235696C (fr)
AT (1) ATE276055T1 (fr)
BR (1) BR0207557B1 (fr)
CA (1) CA2440210C (fr)
CZ (1) CZ305146B6 (fr)
DE (2) DE10116273A1 (fr)
RU (1) RU2283197C2 (fr)
TW (1) TW531456B (fr)
UA (1) UA76143C2 (fr)
WO (1) WO2002078872A1 (fr)
ZA (1) ZA200305566B (fr)

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EP2691188B1 (fr) 2011-05-24 2015-06-17 Siemens Aktiengesellschaft Procédé permettant de faire fonctionner un train de laminoir

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AT500764A1 (de) * 2004-05-19 2006-03-15 Voest Alpine Ind Anlagen Verfahren zur berechnung der geometrischen form von walzgut
AT501314B1 (de) * 2004-10-13 2012-03-15 Voest Alpine Ind Anlagen Verfahren und vorrichtung zum kontinuierlichen herstellen eines dünnen metallbandes
DE102004060342B3 (de) * 2004-12-15 2006-07-27 Siemens Ag Betriebsverfahren für eine Walzstraße und hiermit korrespondierende Einrichtungen
DE102005055106A1 (de) * 2005-11-18 2007-05-24 Sms Demag Ag Verfahren und Walzstraße zum Verbessern des Ausfädelns eines Metallwalzbandes, dessen Walzband-Ende mit Walzgeschwindigkeit ausläuft
DE102007053523A1 (de) * 2007-05-30 2008-12-04 Sms Demag Ag Vorrichtung zur Beeinflussung der Temperaturverteilung über der Breite
DE102007035283A1 (de) * 2007-07-27 2009-01-29 Siemens Ag Verfahren zur Einstellung eines Zustands eines Walzguts, insbesondere eines Vorbands
DE102008007247A1 (de) * 2007-09-13 2009-03-19 Siemens Aktiengesellschaft Betriebsverfahren für eine Walzstraße mit Krümmungserkennung
DE102007050891A1 (de) * 2007-10-24 2009-04-30 Siemens Ag Auf der Streuung einer Istgröße eines Walzguts basierende Adaptierung eines Reglers in einem Walzwerk
DE102008049180A1 (de) * 2008-09-26 2010-04-01 Sms Siemag Aktiengesellschaft Walzanlage zum Walzen von bandförmigem Walzgut
RU2492005C1 (ru) * 2012-03-30 2013-09-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Липецкий государственный технический университет" (ЛГТУ) Способ горячей прокатки полос
JP6704925B2 (ja) * 2015-03-16 2020-06-03 エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 金属ストリップの製造のための方法
RU2615670C1 (ru) * 2015-10-05 2017-04-06 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Липецкий государственный технический университет" (ЛГТУ) Способ горячей прокатки полос
EP3599038A1 (fr) 2018-07-25 2020-01-29 Primetals Technologies Austria GmbH Procédé et dispositif de détermination du contour de bande latéral d'une bande métallique en mouvement

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EP2691188B1 (fr) 2011-05-24 2015-06-17 Siemens Aktiengesellschaft Procédé permettant de faire fonctionner un train de laminoir

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Publication number Publication date
CN1235696C (zh) 2006-01-11
JP4383745B2 (ja) 2009-12-16
UA76143C2 (en) 2006-07-17
ZA200305566B (en) 2003-10-22
DE10116273A1 (de) 2002-10-10
ATE276055T1 (de) 2004-10-15
DE50201031D1 (de) 2004-10-21
CN1500016A (zh) 2004-05-26
CA2440210C (fr) 2010-05-11
CZ20032399A3 (cs) 2004-02-18
US20040079127A1 (en) 2004-04-29
TW531456B (en) 2003-05-11
US6983631B2 (en) 2006-01-10
JP2004529773A (ja) 2004-09-30
CA2440210A1 (fr) 2002-10-10
BR0207557A (pt) 2004-09-14
RU2003131972A (ru) 2005-02-10
WO2002078872A1 (fr) 2002-10-10
CZ305146B6 (cs) 2015-05-20
EP1372875A1 (fr) 2004-01-02
KR20040011491A (ko) 2004-02-05
BR0207557B1 (pt) 2010-06-29
RU2283197C2 (ru) 2006-09-10
KR100841261B1 (ko) 2008-06-25

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